Pixhawk Baseboard v2 Ports

This baseboard is compatible with both Pixhawk 5X & 6X, and any flight controller that follow the Pixhawk Autopilot Bus Standard.

The ports and pinout of Pixhawk Baseboard v2A and v2B are the same. The only difference is that the direction of the header pin is facing.

Pixhawk Standard Baseboard V2A

Pixhawk Standard Baseboard V2B

• Refer to diagram below for location of pin1. All connectors are JST GH 1.25 mm Pitch unless noted otherwise.

  

Power1 (Main) & Power2 Port (Backup) (2.00mm Pitch CLIK-Mate)

Pin	Signal	Volt
1(red)	VDD5V_BRICK1/2	+5V
2(black)	VDD5V_BRICK1/2	+5V
3(black)	SCL1/2	+3.3V
4(black)	SDA1/2	+3.3V
5(black)	GND	GND
6(black)	GND	GND

Telem1, Telem2, Telem3 ports

Pin	Signal	Volt
1(red)	VCC	+5V
2(black)	TX7/5/2 (out)	+3.3V
3(black)	RX7/5/2 (in)	+3.3V
4(black)	CTS7/5/2 (in)	+3.3V
5(black)	RTS7/5/2 (out)	+3.3V
6(black)	GND	GND

GPS 1 Port

Pin	Signal	Volt
1(red)	VCC	+5V
2 black)	TX1(out)	+3.3V
3(black)	RX1(in)	+3.3V
4(black)	SCL1	+3.3V
5(black)	SDA1	+3.3V
6(black)	SAFETY_SWITCH	+3.3V
7(black)	SAFETY_SWITCH_LED	+3.3V
8(black)	VDD_3V3	+3.3V
9(black)	BUZZER-	0~5V
10(black)	GND	GND

GPS 2 Port

Pin	Signal	Volt
1(red)	VCC	+5V
2 black)	TX8(out)	+3.3V
3(black)	RX8(in)	+3.3V
4(black)	SCL2	+3.3V
5(black)	SDA2	+3.3V
6(black)	GND	GND

CAN1, CAN2 ports

Pin	Signal	Volt
1(red)	VCC	+5V
2(black)	CANH1/2	+3.3V
3(black)	CANL1/2	+3.3V
4(black)	GND	GND

Uart4 & I2C port

Pin	Signal	Volt
1(red)	VCC	+5V
2(black)	TX4(out)	+3.3V
3(black)	RX4(in)	+3.3V
4(black)	SCL3	+3.3V
5(black)	SDA3	+3.3V
6(black)	NFC_GPIO	+3.3V
7(black)	GND	GND

SPI Port

Pin	Signal	Volt
1(red)	VCC	+5V
2 (black)	SPI6_SCK	+3.3V
3(black)	SPI6_MISO	+3.3V
4(black)	SPI6_MOSI	+3.3V
5(black)	SPI6_CS1	+3.3V
6(black)	SPI6_CS2	+3.3V
7(black)	SPIX_SYNC	+3.3V
8(black)	SPI6_DRDY1	+3.3V
9(black)	SPI6_DRDY2	+3.3V
10(black)	SPI6_nRESET	+3.3V
11(black)	GND	GND

USB Port

Pin	Signal	Volt
1(red)	VBUS	+5V
2(black)	DM	+3.3V
3(black)	DP	+3.3V
4(black)	GND	GND

I2C Port

Pin	Signal	Volt
1(red)	VCC	+5V
2(black)	SCL3	+3.3V
3(black)	SDA3	+3.3V
4(black)	GND	GND

ETH Port

Pin	Signal	Volt
1(red)	RXN	+3.3V
2(black)	RXP	+3.3V
3(black)	TXN	+3.3V
4(black)	TXP	+3.3V

AD&IO Port

Pin	Signal	Volt
1(red)	VCC	+5V
2(black)	FMU_CAP1	+3.3V
3(black)	FMU_BOOTLOADER	+3.3V
4(black)	FMU_RST_REQ	+3.3V
5(black)	NARMED	+3.3V
6(black)	ADC1_3V3	+3.3V
7(black)	ADC1_6V6	+6.6V
8(black)	GND	GND

AUX & RSSI

1	5V	+5V
2	FMU_CH7 (AUX7)	+3.3V
3	FMU_CH8 (AUX8)	+3.3V
4	GND	GND
5	SBUS_OUT/RSSI_IN	+3.3V
6	GND	GND

DSM RC Port (JST-ZH 1.5mm Pitch)

Pin	Signal	Volt
1(yellow)	VDD_3V3_SPEKTRUM	+3.3V
2(black)	GND	GND
3(gray)	DSM/SPEKTRUM IN	+3.3V

IO Debug Port (JST-SH 1mm Pitch)

Pin	Signal	Volt
1(red)	IO_VDD_3V3	+3.3V
2 black)	IO_USART1_TX	+3.3V
3(black)	NC	--
4(black)	IO_SWD_IO	+3.3V
5(black)	IO_SWD_CK	+3.3V
6(black)	IO_SWO	+3.3V
7(black)	IO_SPARE_GPIO1	+3.3V
8(black)	IO_SPARE_GPIO2	+3.3V
9(black)	IO_nRST	+3.3V
10(black)	GND	GND

FMU Debug Port (JST-SH 1mm Pitch)

Pin	Signal	Volt
1(red)	FMU_VDD_3V3	+3.3V
2 black)	FMU_USART3_TX	+3.3V
3(black)	FMU_USART3_RX	+3.3V
4(black)	FMU_SWD_IO	+3.3V
5(black)	FMU_SWD_CK	+3.3V
6(black)	SPI6_SCK_EXTERNAL1	+3.3V
7(black)	NFC_GPIO	+3.3V
8(black)	PH11	+3.3V
9(black)	FMU_nRST	+3.3V
10(black)	GND	GND

Please Note:

• MAIN OUT is also known as I/O PWM OUT

• AUX OUT is also known as FMU PWM OUT

FMU PWM OUT (AUX OUT)

The PWM Signal output of Main & AUX can be change to 5V via a change of a resistor.

Pin	Signal	Volt
S	FMU_CH1~6	+3.3V
+	VDD_SERVO	0~36V
-	GND	GND

I/O PWM OUT (MAIN OUT)

Pin	Signal	Volt
S	IO_CH1~8	+3.3V
+	VDD_SERVO	0~36V
-	GND	GND